a phone conversation, president obama told president mohamed morsi that the violence there is unacceptable. at least six people have been killed as morsi supporters and opponents fought outside of the presidential palace. opponents marched on the palace last night calling on morsi to step down. but in a speech to the nation he refused to compromise. holly williams is in cairo. holly, good morning to you. what's the latest there? >> reporter: some people hope that after days of protest and bloodshed president morsi would make a major concession when he addressed the nation but he didn't do that. his opponents want to have him immediately give up all of the sweeping new powers that he gave himself two weeks ago and postpone a referendum on egypt's new constitution which is due to take place in over a week. critics say the constitution doesn't protect the rights of all egyptians. president morsi didn't do either of those thing. instead he offered to give up just one of his new powers, a vaguely worded right to take any necessary measures to protect the country. he would give up a